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308377 (2005 RM30)
Classification: Main-belt Asteroid          SPK-ID: 2308377
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1995730995685271 9.5965e-08  
a 2.546521094645685 2.0708e-08 au
q 2.038303986670607 2.5195e-07 au
i 11.40350475903563 8.1849e-06 deg
node 315.8179150535479 2.6613e-05 deg
peri 43.8289681217689 3.0638e-05 deg
M 233.6868272935831 1.411e-05 deg
tp 2459521.293418280139
(2021-Nov-02.79341828)
6.1825e-05 TDB
period 1484.29199080141
4.06
1.8105e-05
4.957e-08
d
yr
n .2425398791012987 2.9585e-09 deg/d
Q 3.054738202620764 2.4841e-08 au
  Orbit Determination Parameters
   # obs. used (total)      329  
   data-arc span      6739 days (18.45 yr)  
   first obs. used      2001-11-11  
   last obs. used      2020-04-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60241  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 20:11:57  

Additional Information
 Earth MOID = 1.0494 au 
 Jupiter MOID = 2.43746 au 
 T_jup = 3.387 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457368.5 (2015-Dec-12.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1984780142836575 9.5696e-08  
q 2.042411157515246 2.5072e-07 au
tp 2458037.463475425193
(2017-Oct-10.96347543)
5.3479e-05 TDB
node 315.8450375667712 2.6603e-05 deg
peri 43.88500863501167 3.0725e-05 deg
i 11.40215194679801 8.1844e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      329  
   data-arc span      6739 days (18.45 yr)  
   first obs. used      2001-11-11  
   last obs. used      2020-04-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60241  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 20:11:57  

Additional Information
 Jupiter MOID = 2.43746 au 
 T_jup = 3.387 
Orbit Covariance (6×6)
  e q tp node peri i
e 9.157790752720184E-15 -2.394956583001554E-14 -3.050823938152211E-12 7.19362394666066E-14 -9.913600005869084E-13 -5.042102963382132E-14
q -2.394956583001554E-14 6.286010175563238E-14 8.067234416238597E-12 -1.900034564780154E-13 2.588128419011367E-12 1.335035452938501E-13
tp -3.050823938152211E-12 8.067234416238597E-12 2.859993583310562E-9 -2.591335559390308E-11 8.368387255083413E-10 1.855776413230319E-11
node 7.19362394666066E-14 -1.900034564780154E-13 -2.591335559390308E-11 7.077028460903309E-10 -7.009261588436975E-10 1.10942526319569E-10
peri -9.913600005869084E-13 2.588128419011367E-12 8.368387255083413E-10 -7.009261588436975E-10 9.440152629779015E-10 -1.034929708509852E-10
i -5.042102963382132E-14 1.335035452938501E-13 1.855776413230319E-11 1.10942526319569E-10 -1.034929708509852E-10 6.698387193784609E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.5   n/a MPO326429  
rotation period rot_per 5.924 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]

308377 (2005 RM30)          Discovered 2005-Sep-10 by LONEOS at Anderson Mesa
Reference: 20111210/Numbers.arcLast Updated: 2011-12-12

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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